class greeting{
	public static void main(String args[])
	{
		System.out.println("Hello world!");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");System.out.println("Hello world!");
		System.out.println("P");
		System.out.println("P");
	}
}